Dr. Preston Avery Sparks, MD
- Medicare services, 2024
- 544
- Medicare patients, 2024
- 191
- Part D claims, 2024
- 272
- MIPS score, 2024
- 94
- Hospital affiliations
- 1
- Practice address
- 2525 Desales Ave, Chattanooga, TN 37404
- Practice phone
- Call (423) 495-2525
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Sparks' professional email, personal email and mobile number
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Dr. Preston Avery Sparks is an internist in Chattanooga, Tennessee
Dr. Sparks practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health.
Dr. Sparks' NPI, 1497286215, was assigned on March 23, 2017. Dr. Sparks holds Tennessee license 67883.
- NPI
- 1497286215NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345513859
- NPI enumeration date
- March 23, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 495-2525
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Preston Avery Sparks practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee
Dr. Sparks' primary practice is CommonSpirit - Memorial Hospital - Chattanooga, at 2525 Desales Ave, Chattanooga, TN 37404 in Hamilton County. The practice phone is (423) 495-2525.
- CommonSpirit - Memorial Hospital - Chattanooga2525 Desales Ave, Chattanooga, TN 37404 · Hamilton CountyPhone(423) 495-2525
Source: Dmand AI Affiliation Data
Dr. Preston Avery Sparks is affiliated with 1 site of care and 2 medical groups
Dr. Sparks' primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. The medical group on file is Memorial Health Partners Foundation. Dmand AI also links Dr. Sparks to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Preston Avery Sparks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sparks practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CommonSpirit - Memorial Hospital - Chattanooga | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Preston Avery Sparks is one of 2,427 internists in Tennessee
Internal medicine is Dr. Sparks' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sparks is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Sparks
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Preston Avery Sparks billed Medicare for 544 services in 2024
CMS data shows 544 Medicare services from Dr. Sparks across 5 procedure codes in 2024, for 191 Medicare patients. Medicare paid $44,510 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sparks' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4922024: 54411%
Dr. Sparks compared with the Tennessee median for internists, 2024
- Dr. Sparks
- Tennessee median
- Medicare services
- 544vs 67119% below
- Medicare patients
- 191vs 22214% below
- Part D claims
- 103vs 33469% below
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Sparks' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sparks and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Preston Avery Sparks treated 191 Medicare patients in 2024, average age 77
CMS counts 191 Medicare patients who saw Dr. Sparks in 2024. The largest group is 75 to 84, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sparks' median patient age at 75, with 58% women.
Dr. Sparks' Medicare patients by age, 2024
Dr. Sparks' Medicare patients by sex, 2024
- Women10153%
- Men9047%
Chronic conditions among Dr. Sparks' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Chronic kidney disease61%
- Heart failure59%
- Ischemic heart disease55%
- Anxiety49%
- Diabetes49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sparks' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Preston Avery Sparks wrote 272 Medicare Part D claims in 2024
In 2024, Dr. Sparks wrote 272 Medicare Part D claims for 135 patients. 85% of them were for generic drugs. CMS names the drug for 103 of them, across 7 drugs with 11 or more claims each, at $8,278 in total drug cost. In 2023, CMS named 43 claims across 3 drugs.
Dr. Sparks' Part D claims by kind of drug, 2024
- Generic232 claims85%
- Brand-name40 claims15%
Dr. Sparks' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sparks' Part D claims, 2024
- Opioids5%13 of 272 claims
- Antibiotics19%53 of 272 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 432024: 103140%
Drugs named by CMS: 7 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Preston Avery Sparks scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Sparks for performance year 2024, reported through an alternative payment model (APM). Dr. Sparks accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sparks' MIPS scores, performance year 2024
- 94of 100Final score
- 92.6of 100Quality
- 93of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Preston Avery Sparks received $136 in industry payments in 2023
CMS Open Payments shows 2 general payments to Dr. Sparks from 2 drug and device companies in 2023. Food and beverage make up the largest share, 100% of the total. Endogastric Solutions, Inc paid the most, $107.
Companies that paid Dr. Sparks the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Preston Avery Sparks's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Preston Avery Sparks
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Preston Avery Sparks' NPI number?
Dr. Preston Avery Sparks' NPI number is 1497286215. It was assigned on March 23, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Preston Avery Sparks?
Dr. Preston Avery Sparks is an internist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Preston Avery Sparks practice?
Dr. Sparks practices at 2525 Desales Ave, Chattanooga, TN 37404. Dr. Sparks' primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. Dmand AI also links Dr. Sparks to 1 medical group.
What is Dr. Preston Avery Sparks' office phone number?
The practice phone on file for Dr. Sparks is (423) 495-2525.
What is Dr. Preston Avery Sparks' medical license number?
Dr. Sparks holds Tennessee license 67883.
Which hospitals is Dr. Preston Avery Sparks affiliated with?
Dr. Sparks practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee.
What medical group is Dr. Preston Avery Sparks part of?
Dr. Sparks is linked to Memorial Health Partners Foundation. Dmand AI links Dr. Sparks to 1 more medical group.
Does Dr. Preston Avery Sparks accept Medicare?
Yes. CMS data shows Dr. Sparks billed Medicare for 544 services in 2024, and Dr. Sparks accepts Medicare assignment.
What is Dr. Preston Avery Sparks' MIPS score?
Dr. Sparks' MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Preston Avery Sparks see?
CMS counts 191 Medicare patients who saw Dr. Sparks in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Dr. Preston Avery Sparks bill to Medicare?
In 2024, Dr. Sparks' most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
What drugs does Dr. Preston Avery Sparks prescribe most?
In 2024 Medicare Part D data, Dr. Sparks' most prescribed drugs by claims were Prednisone, Amoxicillin-Clavulanate Potass and Cefdinir.
Has Dr. Preston Avery Sparks received payments from drug or device companies?
CMS Open Payments shows $136 in general payments to Dr. Sparks from 2 companies from 2023 to 2023. The largest total came from Endogastric Solutions, Inc.
How long has Dr. Preston Avery Sparks been practicing?
Dr. Sparks graduated from medical school in 2017, 9 years ago.
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